r ⊥ ≡ ( E 0 r E 0 i ) ⊥ = n i cos θ i − n t cos θ t n i cos θ i + n t cos θ t {\displaystyle r_{\perp }\equiv \left({E_{0r} \over E_{0i}}\right)_{\perp }={n_{i}\cos {\theta _{i}}-n_{t}\cos {\theta _{t}} \over n_{i}\cos {\theta _{i}}+n_{t}\cos {\theta _{t}}}}
t ⊥ ≡ ( E 0 r E 0 i ) ⊥ = 2 n i cos θ i n i cos θ i + n t cos θ t {\displaystyle t_{\perp }\equiv \left({E_{0r} \over E_{0i}}\right)_{\perp }={2\ \ n_{i}\cos {\theta _{i}} \over n_{i}\cos {\theta _{i}}+n_{t}\cos {\theta _{t}}}}
--Noe de Jesus Atzin Cañas 20:58 18 feb 2010 (UTC) --Noe de Jesus Atzin Cañas 20:33 23 feb 2010 (UTC)